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ADS7865IPBSG4 Datasheet(PDF) 1 Page - Texas Instruments |
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ADS7865IPBSG4 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 33 page S/H Comparator CDAC Input MUX AV DD REF IN SAR S/H Comparator CDAC REF OUT AGND SAR 10-BitDAC 2.5VReference CHA0+ CHA0- CHA1+ CHA1- BV DD DB[11:0] CS CLOCK WR RD BUSY CONVST BGND CHB0+ CHB0- CHB1+ CHB1- Input MUX ADS7865 www.ti.com SBAS441C – OCTOBER 2008 – REVISED APRIL 2012 Dual, 12-Bit, 3+3 or 2+2 Channel, Simultaneous Sampling Analog-to-Digital Converter Check for Samples: ADS7865 1 FEATURES DESCRIPTION The ADS7865 is a dual, 12-bit, 2MSPS analog-to- 2 • Six Pseudo- or Four Fully Differential Inputs digital converter (ADC) with four fully differential or six • SNR: 71.7dB, THD: –87dB pseudo-differential input channels grouped into two • Programmable Channel Sequencer pairs for high-speed, simultaneous signal acquisition. Inputs to the sample-and-hold (S/H) amplifiers are • Programmable and Buffered Internal 2.5V fully differential and are maintained differentially to Reference the input of the ADC. This architecture provides • Flexible Power-Down Features excellent common-mode rejection of 72dB at 100kHz, • Variable Power-Supply Ranges: 2.7V to 5.5V which is a critical performance characteristic in noisy environments. • Low-Power Operation: 44mW Maximum at 5V • Operating Temperature Range: The ADS7865 is pin-compatible with the ADS7862, but offers additional features such as a –40°C to +125°C programmable channel sequencer and reference • Pin-Compatible Upgrade for the ADS7862 output, flexible supply voltage (2.7V to 5.5V for AVDD and BVDD), a pseudo-differential input multiplexer with APPLICATIONS three channels per ADC, and several power-down features. • Motor Control • Multi-Axis Positioning Systems The ADS7865 is offered in a TQFP-32 package. It is specified over the extended operating temperature • Three-Phase Power Control range of –40°C to +125°C. 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2008–2012, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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